Who is running Flowmaster mufflers on their F-150
08-19-2015, 10:36 AM
#71
Got a 44 SIDO on my truck. It's way too loud in the cab because it's literally right under the back seat of the cab. Do I have to move the whole thing back or can I just put pipes on the outlets and run them backward?
08-19-2015, 02:06 PM
#72
F150 Forum
Thread Starter
would a certain type of exhaust hanger cause this? perhaps the exhaust being mounted too tightly? the vibration does get worse with certain exhaust tones, none of the factory exhaust mounts were reused, all that was put on were some strap like hangers with pieces of what looks like a thick belt between that and the clamp hanger.
If your exhaust is dumped right underneath the cab, running at least 12 inches of tailpipe after the muffler will quiet it down some and smooth out your exhaust note. Moving the muffler back and then running 12 inches of tailpipe would help to reduce interior sound levels even more.
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Martian (08-19-2015)
08-19-2015, 02:07 PM
#73
Thanks much.
08-20-2015, 10:59 AM
#74
F150 Forum
Thread Starter
08-21-2015, 08:39 AM
#76
Senior Member
08-24-2015, 05:02 PM
#79
F150 Forum
Thread Starter
08-24-2015, 05:35 PM
#80
FlowMaster 817478 Dual rear Exit kit
I installed the FlowMaster 817478 dual cat back rear exit (this kit gives you both a dual and single exit option). It was one of the few kits that did not require the removal of the rear tire for dual exit. When I add this to my cold air kit and a SCT tune it really improved the overall performance of the truck. Also I had Midas do the install and weld all the joints.
